fastball

Definitions of fastball
  1. noun
    (baseball) a pitch thrown with maximum velocity
    “he swung late on the fastball
    synonyms: bullet, heater, hummer, smoke
    see moresee less
    types:
    slider
    a fastball that curves slightly away from the side from which it was thrown
    type of:
    delivery, pitch
    (baseball) the act of throwing a baseball by a pitcher to a batter
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